Listen to Kindle, Apple Books, and More on Your Mac
Text-to-speech for native Mac apps that browser extensions can't reach. Paragraph highlighting. Floating player. 100% free.
Download for Mac — FreemacOS 13+ · Apple Silicon & Intel · No signup required
Works With 8 Mac Apps
Native support for the apps you already use
Kindle for Mac
Every Kindle book becomes listenable. OCR reads what your eyes see — bypasses Amazon's rendering.
Apple Books
ePub and free classics — read aloud with paragraph highlighting and auto page-turn.
Preview (PDF)
Papers, reports, manuals — any PDF, paragraph by paragraph.
Microsoft Word
Essays, contracts, drafts — listen while you review.
Apple Notes
Meeting notes, research dumps — hands-free review.
Apple Pages
Long documents with auto-scroll and highlight tracking.
WeChat Articles
Read WeChat Official Account articles aloud with paragraph highlighting.
Lark Docs
Read Lark/Feishu documents aloud.
Start Listening in 60 Seconds
Download & Open
Download CastReader for Mac. Grant Accessibility permission when prompted.
Open Any Document
Open a book in Kindle or Apple Books, a PDF in Preview, a doc in Word — any supported app.
Click Read
A floating Read button appears. Click it — your document reads aloud with paragraph highlighting.
What You Get
Paragraph Highlighting
Each paragraph highlights as it's read. Transparent overlay on the original app — nothing is hidden.
Floating Player
Play/pause, speed control (0.5x–3x), voice selection. Always accessible, never in the way.
40+ Languages
Natural AI voices. Auto-detects document language. Chinese, English, Japanese, Korean, and more.
Auto Scroll
Automatically scrolls when reading reaches 70% of the visible area. Continuous reading, no manual scrolling.
Why CastReader for Kindle on Mac
Kindle for Mac has no text-to-speech. Amazon never built it. VoiceOver can't read Kindle's custom rendering. CastReader solves this.
- ✓Kindle for Mac has zero TTS — CastReader is the only solution
- ✓OCR reads the rendered text, bypassing all restrictions
- ✓Every book in your Kindle library becomes listenable
- ✓No Audible subscription needed — 100% free
- ✓Word-level highlight overlay on the native app
Why CastReader for Apple Books
macOS VoiceOver exists but sounds robotic, has no paragraph tracking, and disrupts your reading flow. CastReader is purpose-built for reading.
- ✓Natural AI voices instead of robotic VoiceOver
- ✓Paragraph-level highlighting that follows along
- ✓Auto page-turn — continuous listening across chapters
- ✓Works with free ePubs and purchased books
- ✓Speed control from 0.5x to 3x
Common Questions
Is CastReader for Mac free?
Yes, 100% free. No limits, no signup, no subscription. Download and start listening immediately.
What macOS version is required?
macOS 13 (Ventura) or later. Works on both Apple Silicon (M1/M2/M3/M4) and Intel Macs.
Do I need to grant Accessibility permission?
Yes, on first launch. CastReader uses macOS Accessibility APIs to read text from native apps. Go to System Settings > Privacy & Security > Accessibility and enable CastReader.
Does it work with DRM-protected Kindle books?
Yes. CastReader reads the visually rendered text on your screen — the same content your eyes see. It doesn't download or decrypt book files. It's functionally a screen reader with natural AI voices.
Can I use it with books I bought from Amazon?
Yes, any book that Kindle for Mac can open. Purchased books, Kindle Unlimited, free samples — all work.
What voices are available?
40+ natural AI voices across multiple languages. CastReader auto-detects the document language and selects the appropriate voice.
Is my reading data safe?
Only the extracted text is sent to the TTS API for audio generation. We don't track what you read, store your books, or share your data.
Does it also work in the browser?
Yes! CastReader also has a Chrome/Edge extension for web-based reading (Kindle Cloud Reader, Notion, Google Docs, and 100+ other websites). The Mac app handles native apps that the browser extension can't reach.
Also Works in Your Browser
CastReader Chrome/Edge extension supports 100+ websites
Text to Speech for Mac Desktop Apps in 2026
Browser-based TTS extensions have exploded in popularity — there are dozens that can read web pages aloud. But they all share one limitation: they only work inside the browser. Open a book in Kindle for Mac, a PDF in Preview, or a document in Word, and every Chrome extension becomes useless. These are native macOS apps with no DOM, no web page, no text that a browser extension can access.
macOS does ship with VoiceOver, Apple's built-in screen reader. But VoiceOver is designed for accessibility navigation, not comfortable reading. The voices sound robotic, there's no paragraph highlighting, no speed control beyond basic rate adjustment, and no way to click a paragraph to jump there. For Kindle specifically, VoiceOver can't even read the content — Amazon's rendering is opaque to standard accessibility tools.
CastReader for Mac bridges this gap. It uses two approaches depending on the app: for apps that expose text through macOS Accessibility APIs (Apple Books, Preview, Notes, Pages), it reads text directly with precise character-level positioning for highlight overlay. For apps that render text as images (Kindle, Word), it uses OCR to read the rendered content — the same text your eyes see. Both approaches produce the same result: natural AI voices reading your document aloud with paragraph-level highlighting, a floating player with speed control, and auto-scrolling that keeps up with the narration.